How many types of spiders are there?

A:

Quick Answer

There are approximately 35,000 types of spiders that have been identified worldwide, although biologists believe there are many more that are not yet identified. In North America, there are approximately 3,000 types of spiders, according to Explorit Science Center.

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The 35,000 known types of spiders are grouped into 70 different families. Some examples are tarantulas, which belong to the spider family Theraphosidae, and wolf spiders, which belong to the family Lycosidae. Despite popular belief, daddy-long-legs are not spiders and are not included in the order Araneae, instead they belong to the order Opiliones and the family Phalangiidae, according to Explorit Science Center.